Be sure that virusscanner exclude the used paths, they slow down the process extremly....
External stuff is always slow ;)....or check if something's wrong on your system.

Got a C2D 6600 here....64bit Vista, 64bit cmpro (but that shouldn't play a role) and rebuild some demo data from one hd to a different one...both internal...(zip2zip) and it took sets nearly second by second....


Roman Scherzer